Salonpas Pain Relieving Patch, 8-Hour Pain Relief - 6 Large Patches: SALONPAS PAIN RELIEVING PATCH: 3 powerful pain fighters that work at the site of pain for maximum pain relief. Easily apply gel under clothing for up to 8 hours of relief from muscle soreness, sprains, back pain or backache, joint pain, & neck pain TACKLE LARGE OR SMALL PAIN AREAS: Convenient large patches can be used for up to 8 hours of relief on large pain areas like back, shoulder, and neck. Plus, check out our whole assortment...